| /******************************************************************************* |
| * Copyright (c) 2005, 2015 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ui.internal.actions; |
| |
| import static org.eclipse.swt.events.SelectionListener.widgetSelectedAdapter; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.jface.action.ControlContribution; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.KeyAdapter; |
| import org.eclipse.swt.events.KeyEvent; |
| import org.eclipse.swt.widgets.Combo; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.ui.internal.WorkbenchMessages; |
| import org.osgi.framework.FrameworkUtil; |
| |
| /** |
| * This is the contribution item that is used to add a help search field to the |
| * cool bar. |
| * |
| * @since 3.1 |
| */ |
| public class HelpSearchContributionItem extends ControlContribution { |
| private static final String ID = "org.eclipse.ui.helpSearch"; //$NON-NLS-1$ |
| |
| private IWorkbenchWindow window; |
| |
| private Combo combo; |
| |
| private int MAX_ITEM_COUNT = 10; |
| |
| /** |
| * Creates the contribution item. |
| * |
| * @param window the window |
| */ |
| public HelpSearchContributionItem(IWorkbenchWindow window) { |
| this(window, ID); |
| } |
| |
| /** |
| * Creates the contribution item. |
| * |
| * @param window the window |
| * @param id the contribution item id |
| */ |
| public HelpSearchContributionItem(IWorkbenchWindow window, String id) { |
| super(id); |
| Assert.isNotNull(window); |
| this.window = window; |
| } |
| |
| @Override |
| protected Control createControl(Composite parent) { |
| combo = new Combo(parent, SWT.NONE); |
| combo.setToolTipText(WorkbenchMessages.WorkbenchWindow_searchCombo_toolTip); |
| String[] items = PlatformUI.getDialogSettingsProvider(FrameworkUtil.getBundle(HelpSearchContributionItem.class)) |
| .getDialogSettings().getArray(ID); |
| if (items != null) { |
| combo.setItems(items); |
| } |
| combo.setText(WorkbenchMessages.WorkbenchWindow_searchCombo_text); |
| combo.addKeyListener(new KeyAdapter() { |
| @Override |
| public void keyReleased(KeyEvent e) { |
| if (e.character == SWT.CR) { |
| doSearch(combo.getText(), true); |
| } |
| } |
| }); |
| combo.addSelectionListener(widgetSelectedAdapter(e -> { |
| int index = combo.getSelectionIndex(); |
| if (index != -1) { |
| doSearch(combo.getItem(index), false); |
| } |
| })); |
| return combo; |
| } |
| |
| @Override |
| protected int computeWidth(Control control) { |
| return control.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x; |
| } |
| |
| private void doSearch(String phrase, boolean updateList) { |
| if (phrase.isEmpty()) { |
| window.getWorkbench().getHelpSystem().displaySearch(); |
| return; |
| } |
| if (updateList) { |
| boolean exists = false; |
| for (int i = 0; i < combo.getItemCount(); i++) { |
| String item = combo.getItem(i); |
| if (item.equalsIgnoreCase(phrase)) { |
| exists = true; |
| break; |
| } |
| } |
| if (!exists) { |
| combo.add(phrase, 0); |
| if (combo.getItemCount() > MAX_ITEM_COUNT) { |
| combo.remove(combo.getItemCount() - 1); |
| } |
| PlatformUI.getDialogSettingsProvider(FrameworkUtil.getBundle(HelpSearchContributionItem.class)) |
| .getDialogSettings().put(ID, combo.getItems()); |
| } |
| } |
| window.getWorkbench().getHelpSystem().search(phrase); |
| } |
| } |